Rotary engine.



No. 754,153. PATENTED MAR. 8, 1904.

c. MAQARTHUR & F. SMITH.

ROTARY ENGINE.

APPLIOATION FILED FEB. 12, 1903.

N0 MODEL. 2 sums-sum 1.

(9.9 M. z wme No. 754,153. v- PATENTED MAR. 8,1904.

0. MmARTHURKz E. SMITH.

ROTARY ENGINE.

7 APPLICATION FILED FEB. 12, 1903.

N0 MODEL. 2 SHEETS-SHEET 2.

THE Norms PETERS co, Pno'rauwm WASHINGTON. n. c.

UNITED STATES Patented march 8, 1904.

PATENT OFFICE.

ROTARY ENGINE.

SPECIFICATION forming part of Letters Patent No. 754,153, dated March 8,1904.

Application filed February 12, 1903. Serial No. 143,140. (No model.) i

To all whom it may concern:

Be it known that W8,0HRISTOPHER MAoAR- THUR and FRANK SMITH, subjects ofthe King of England, and residents of Woolston, near Southampton,England, have invented certain new and useful Improvements in RotaryEngines,of which the following is a specification.

This invention relates to the admission and reversing valves ofhigh-speed rotary engines, especially adapted for propelling vessels,but also for any other suitable purpose.

In the annexed drawings,Figure 1 is a vertical section of part of suchan engine, and Fig. 2 a half end elevation and half cross-sectionthereof.

The invention relates to a partially-rotary valve to for the admissionof the motive fluid to the cylinder 00 in conjunction with apartially-rotary sleeve 6. The valve 60 is provided with an inlet-port uof such width that it is always open to the motive-fluid inlet 1)throughout the different positions of the valve. The valve a has alsothree outlet-ports'o d e, the ports a and 0 being equally spaced fromthe port cl and corresponding with the space between the entrances ofthe two passage-ways j, leading to the cylinder 00,.one of thesepassage-ways 1' being for use with the forward travel of the rotarypiston y and the other passage-way z for use with reverse travel of saidpiston y.

The sleeveb has an inlet-port Z of such width that it is always open tothe motive-fluid inlet in the difierent positions given to the sleeve1).

The sleeve 6 has also a port is so placed that it may be made tocoincide with either passage '5 or according as the sleeve Z2 is movedby means of the handle f to the one or other end position thereof.

The port k is so shaped that it may be used for throttling the motivefluid more or less as required.

If the sleeve 12 is placed as in the drawings,

Fig. 1, the admission of fluid to the cylinder w takes place by passagealternately by the valve-ports ol 6 when the valve (4 is rocked by itslever 10, rod 0 and eccentric-strap 17. working on an eccentric on themain shaft m. By moving the sleeve Z) to the other end positionadmission to the cylinder 00 takes place by passage 2' alternatelythrough the valve-ports o d.

Means of adjustment between the link 19 and rod 0 may be provided forthe purpose of varying the cut-off according to requirements-forinstance, by pivoting said rod in a block r,sliding in a slot q in thelink and provided with a screw 8, adapted to act on said block.

We declare that What we claim is In a rotary engine the combination of acylinder a; and valve-casing having alternative admission-passages ifleading from said valvechamber to cylinder for forward and reversetravel respectively, a reciprocatory valve having ports 0 d e, saidports 0 e being spaced at equal distance from said port 03, saiddistance corresponding to that between passages d j and a reciprocatingreversing-Valve I) having a port is and means for adjusting the valve 6so that said port cooperates alternatively with passage 7 or j for thepurpose set forth.

In witness whereof we have signed this specification in the presence oftwo witnesses.

Witnesses:

RIOHD. J ONES, WALTER MOULAND.

